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    Comparison of Models for Multiple Nonlinear Power Amplifiers in Active Antenna Arrays


    Dooley, John and Finnerty, Keith and Farrell, Ronan (2013) Comparison of Models for Multiple Nonlinear Power Amplifiers in Active Antenna Arrays. Proceedings of the 43rd European Microwave Conference. ISSN 978-2-87487-031-6

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    Abstract

    The methods used to model nonlinear power amplifiers are many and varied. With the introduction of active antenna arrays as a solution to increasing the capacity of cellular networks new strategies need to be developed to model their multiple signal paths. Models for power amplifiers in active antenna arrays will be required to have similar performance in terms of speed and accuracy as before. To achieve this, will require a reduction in the number of coefficients in each signal path relative to the number of PAs in the active antenna array, or alternative modeling strategies. In this paper we will present some of the reasons for requiring the ability to predict each PA output in an active antenna array, a shortlist of models which can be used to model the outputs of all PAs simultaneously and efficiently. Finally the relative performance of these models are compared in terms of their size, accuracy and speed.

    Item Type: Article
    Keywords: Power amplifiers; predistortion; active antenna arrays;
    Academic Unit: Faculty of Science and Engineering > Electronic Engineering
    Faculty of Science and Engineering > Research Institutes > Callan Institute
    Item ID: 4691
    Depositing User: Dr. Ronan Farrell
    Date Deposited: 13 Jan 2014 14:05
    Journal or Publication Title: Proceedings of the 43rd European Microwave Conference
    Publisher: EuMA
    Refereed: Yes
    URI:

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